Delta-endotoxin

Delta-endotoxin named also Cyt or Cry, is a pore-forming toxin produced by Bacillus thuringiensis. It is used as an insecticide. Upon ingestion by insect, δ-endotoxin is cleaved, binds to the gut epithelium and forms cation channels. This causes cell lysis and death. See Insecticidal delta-endotoxin Cyt2Ba from Bacillus thuringiensis for more details.

3D Structures of δ-endotoxin
3eb7 – BtCry8Ea1 – Bacillus thuringiensis

2rci – BtCytBa

2c9k – BtCry4A residues 68-679

1w99 - BtCry4Ba residues 84-641

1dlc - BtCryIiia residues 61-644

1ji6 - BtCryIiib residues 64-652

1cby - BtCytB residues 1-259